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P89LPC952FA Datasheet(PDF) 2 Page - NXP Semiconductors |
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P89LPC952FA Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 66 page 9397 750 14716 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Preliminary data sheet Rev. 01— 16 September 2005 2 of 66 Philips Semiconductors P89LPC952 8-bit microcontroller with 10-bit ADC 2.2 Additional features s A high performance 80C51 CPU provides instruction cycle times of 111 ns to 222 ns for all instructions except multiply and divide when executing at 18 MHz. This is six times the performance of the standard 80C51 running at the same clock frequency. A lower clock frequency for the same performance results in power savings and reduced EMI. s Serial flash In-Circuit Programming (ICP) allows simple production coding with commercial EPROM programmers. Flash security bits prevent reading of sensitive application programs. s Serial flash In-System Programming (ISP) allows coding while the device is mounted in the end application. s In-Application Programming (IAP) of the flash code memory. This allows changing the code in a running application. s Low voltage (brownout) detect allows a graceful system shutdown when power fails. May optionally be configured as an interrupt. s Idle and two different power-down reduced power modes. Improved wake-up from Power-down mode (a LOW interrupt input starts execution). Typical power-down current is 1 µA (total power-down with voltage comparators disabled). s Active-LOW reset input can be driven by any internal reset. On-chip power-on reset allows operation without external reset components. A reset counter and reset glitch suppression circuitry prevent spurious and incomplete resets. A software reset function is also available. s Only power and ground connections are required to operate the P89LPC952 when internal reset option is selected. s Configurable on-chip oscillator with frequency range options selected by user programmed flash configuration bits. Oscillator options support frequencies from 20 kHz to the maximum operating frequency of 18 MHz. s Oscillator fail detect. The watchdog timer has a separate fully on-chip oscillator allowing it to perform an oscillator fail detect function. s Programmable port output configuration options: quasi-bidirectional, open drain, push-pull, input-only. s Port ‘input pattern match’ detect. Port 0 may generate an interrupt when the value of the pins match or do not match a programmable pattern. s Controlled slew rate port outputs to reduce EMI. Outputs have approximately 10 ns minimum ramp times. s Four interrupt priority levels. s Eight keypad interrupt inputs, plus two additional external interrupt inputs. s Schmitt trigger port inputs. s Second data pointer. s Extended temperature range. s Emulation support. |
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